    /*  
    championBuilder - Champions Online character planner.
    Copyright (C) 2009 Moritz Hartmeier
    
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
    
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.
    
    You can find the GNU General Public License in the data folder.
    */


package ch.zarzu.util;

import java.io.File;

import javax.swing.filechooser.FileFilter;

public class ExtensionFileFilter extends FileFilter {
      String description;

      String extensions[];

      public ExtensionFileFilter(String description, String extension) {
        this(description, new String[] { extension });
      }

      public ExtensionFileFilter(String description, String extensions[]) {
        if (description == null) {
          this.description = extensions[0];
        } else {
          this.description = description;
        }
        this.extensions = (String[]) extensions.clone();
        toLower(this.extensions);
      }

      private void toLower(String array[]) {
        for (int i = 0, n = array.length; i < n; i++) {
          array[i] = array[i].toLowerCase();
        }
      }

      public String getDescription() {
        return description;
      }

      public boolean accept(File file) {
        if (file.isDirectory()) {
          return true;
        } else {
          String path = file.getAbsolutePath().toLowerCase();
          for (int i = 0, n = extensions.length; i < n; i++) {
            String extension = extensions[i];
            if ((path.endsWith(extension) && (path.charAt(path.length() - extension.length() - 1)) == '.')) {
              return true;
            }
          }
        }
        return false;
      }
    }
